/*
 *+------------------------------------------------------------------------+
 *| Licensed Materials - Property of IBM
 *| BI and PM: prmt
 *| (C) Copyright IBM Corp. 2002, 2011
 *|
 *| US Government Users Restricted Rights - Use, duplication or
 *| disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 *|
 *+------------------------------------------------------------------------+
*/


/**
	This script is used to provide interactivity for the PickTree prompt control
	This control primary purpose is to support SAP hierarchy variables
	
	@private
	@class
*/
cognos.Prompt.Control.PickTree = cognos.Prompt.Control.f_extend({

	f_initialize: function( v_oProps ) {
		this._type_ = "cognos.Prompt.Control.PickTree";
		this.f_parent( v_oProps ); // call parent's initialize()
		
		var v_oPropsComponent = Object.f_extend( {}, v_oProps );

		v_oPropsComponent["@required"] = true;
		v_oPropsComponent["@hideAdornments"] = true;
		v_oPropsComponent.m_bIsAComponent = true;
		v_oPropsComponent.m_oOwner = this;
		v_oPropsComponent._id_ = this.f_getId();
		
		this.m_oTreeArguments = v_oPropsComponent;

		this.f_initCompleted();
		// initialize adornment image
		this.m_adornmentImg = 'spacer.gif';

	},

	//validate the input into the control
	checkData: function()
	{
		this.m_bValid = this.m_oTree.m_bValid;

		this.f_parent(); // call parent's checkData using saved reference.
		return this.m_bValid;
	},

	clearValues: function() {
		this.f_parent();
		this.f_clear();
	},

	f_drawCompleted: function()
	{
		this.m_oTree.f_drawCompleted();

		var v_oPickList = $(this.f_getId("PRMT_PT_HIERARCHIES_"));
		this.m_oPickList = v_oPickList;
		PRMTUtils.f_addEvent(v_oPickList, "change", this.f_onChangeTree.bind(this) );
	}
});

/**
 * Return the value of the control, which in this case is returning the tree selection
 */
cognos.Prompt.Control.PickTree.prototype.f_getPV = function()
{
	var v_oTree = this.m_oTree;
	var v_aPV = [];
	if ( v_oTree )
	{
		v_aPV = v_oTree.f_getPV();
	}
	return v_aPV;
};

/**
 * Draws the layout
 * <td><table><tr>
 * 		<td>Adornment</td>
 *  	<td>
 *  		<div>pickList</div>
 *  		<div>Tree</div>
 *
 *	@private
 *	@param {C_PromptElement} v_el Container.
 *	@return {void}
*/
cognos.Prompt.Control.PickTree.prototype.f_drawLayout = function( v_el )
{
	var v_tdLayout = $CE( "td", {}, v_el );


	var v_tbl = $CE( "table", {"border": K_PRMT_DEBUG_TABLEBORDER, "cellPadding":0, "cellSpacing":0, "role":K_PRMT_ARIA_ROLE_PRESENTATION}, v_tdLayout );
	if ( this[K_PRMT_sATTR_DISABLED] )
	{
		v_tbl.f_setProperty( "disabled", "disabled" );
	}
	var v_tbd = $CE( "tbody", {}, v_tbl );
	var v_tr = $CE( "tr", {}, v_tbd );

	var v_td = $CE( "td", {"vAlign":"top", "class": "clsControlLabel pc"}, v_tr );
	if ( this.isRequired() && !this["@hideAdornments"] )
	{
		var v_imgReq = $CE( "img", {
			"src": this.m_sSkin + "/prompting/images/icon_required.gif",
			"class": "clsErrorRequired",
			"vAlign": "top",
			"height": 10,
			"width": 10,
			"border": 0,
			"alt": ""
		}, v_td);
	}

	var v_tdControl = $CE( "td", {}, v_tr );
	this.f_drawPickList( v_tdControl );

	v_tr = $CE( "tr", {}, v_tbd );
	v_td = $CE( "td", {"vAlign":"top", "class": "clsControlLabel pc"}, v_tr );
	$CE("img", {"src": this.m_sSkin + "/prompting/images/spacer.gif", "width": 10, "height": 1, "border": 0, "alt": ""}, v_td);

	this.m_elPrompt =  this.f_drawTree( v_tr );

	return (this.m_elPrompt);

}


/**
 * Draws the drop down to pick the hierarchy 
 *
 *	@private
 *	@param {C_PromptElement} v_el Container.
 *	@return {void}
*/
cognos.Prompt.Control.PickTree.prototype.f_drawPickList = function( v_el )
{
	var v_oContainer = $CE("div", {"id": this.f_getId("PRMT_PT_HIERARCHIES_BOX_")}, v_el);
	var v_oPickList = $CE("select",{"id": this.f_getId("PRMT_PT_HIERARCHIES_"), "class":"clsSelectControl pv"},v_oContainer);

	var v_firstOption = this["@columnName"] && this["@columnName"].length > 0 ? this["@columnName"]:this["@parameter"];

	// draw select options
	var v_choices = this.f_getChildByTagName( "selectHierarchyChoice" );
	var v_selectedHierarchy = ((v_choices && v_choices.c && v_choices.c.length > 0)? v_choices.c[0] : null);

	var v_options = this.f_getChildByTagName( "selectHierarchies" );
	var v_optionEl;
	
	// add the top two lines
	v_optionEl = $CE("option", {}, v_oPickList);
	v_optionEl.f_appendText( G_IsBidiEnabled && this["@contentTextDirection"] ? PRMT_BidiUtils.enforceBidiDirection(v_firstOption, this["@contentTextDirection"]) : v_firstOption );
	v_optionEl = $CE("option", {}, v_oPickList);
	v_optionEl.f_appendText("--------------------------------------------");
		
	if ( v_options && v_options.c && v_options.c.length > 0)
	{
		for (var i = 0; i < v_options.c.length; i++ )
		{
			var v_option = v_options.c[i];
			var v_optionAttr = {"value": v_option[K_PRMT_sATTR_USE_VALUE], "dv":v_option[K_PRMT_sATTR_DISPLAY_VALUE]};
			if (v_selectedHierarchy && v_option && v_option[K_PRMT_sATTR_USE_VALUE] == v_selectedHierarchy[K_PRMT_sATTR_USE_VALUE]) {
				v_optionAttr["selected"] = "true"
			}
			v_optionEl = $CE("option", v_optionAttr, v_oPickList);
			v_optionEl.f_appendText( (G_IsBidiEnabled && this["@contentTextDirection"] ? PRMT_BidiUtils.enforceBidiDirection(v_option[K_PRMT_sATTR_DISPLAY_VALUE], this["@contentTextDirection"]) : v_option[K_PRMT_sATTR_DISPLAY_VALUE]) );
		}
	}

	return v_oContainer;
};

/**
 * Draw the tree part of the control leveraging already existing Tree control
 */
cognos.Prompt.Control.PickTree.prototype.f_drawTree = function( v_el )
{
	var v_oContainer = $CE("div", {"id": this.f_getId("PRMT_PT_TREE_BOX_")}, v_el);
	var v_tbl = $CE( "table", {"border": K_PRMT_DEBUG_TABLEBORDER, "cellPadding":0, "cellSpacing":0, "role":K_PRMT_ARIA_ROLE_PRESENTATION}, v_oContainer );
	var v_tbd = $CE( "tbody", {}, v_tbl );
	var v_tr = $CE( "tr", {}, v_tbd );
	this.f_cleanTreeArguments();
	var v_oTree = new cognos.Prompt.Control.Tree( this.m_oTreeArguments );
	v_oTree.f_drawLayout(v_tr);
	this.m_oTree = v_oTree;
};

/**
 * Clean the hierarchy list and choice from the tree arguments
 */
cognos.Prompt.Control.PickTree.prototype.f_cleanTreeArguments = function(  ) {
	// rm "selectHierarchies"  and "selectHierarchyChoice", if selectOptions is missing or empty set canExpand to false;
	var v_treeArguments = this.m_oTreeArguments;
	if ( v_treeArguments.c && v_treeArguments.c.length )
	{
		for ( var i = 0, j = 0; i < v_treeArguments.c.length; i++ )
		{
			if ( v_treeArguments.c[i].n == "selectHierarchies"  || v_treeArguments.c[i].n == "selectHierarchyChoice") {
				v_treeArguments.c.splice(i,1);
				i--;
			}
		}
	}
	
};

/**
 * Get the selected hierarchy from the hierarchy pick list
 */
cognos.Prompt.Control.PickTree.prototype.f_getPickListSelection = function()
{
	var result = null;
	var v_oPickList = this.m_oPickList;
	if (v_oPickList.options && v_oPickList.options.length > 0) {
		var v_oSelOption = v_oPickList.options[v_oPickList.selectedIndex];
		if (v_oSelOption) {
			result = v_oSelOption.getAttribute('value');
			if (result === null)
			{
				result = v_oSelOption.value;
			}
			// for embedded IE 9 "feature"
			if  (!result && v_oSelOption.attributes && v_oSelOption.attributes['value']) {
				result = v_oSelOption.attributes['value'].value;
			}

		}
	}
	return result;
};

/**
 * Get the hierarchy options in XML format, like the example below:
 *			 	<selectHierarchies>
 *					 <selectHierarchy useValue="[P].[D].[H1]" displayValue=" Hierarchy 1"/>
 *			 		 <selectHierarchy useValue="[P].[D].[H2]" displayValue=" Hierarchy 2"/>
 *					 <selectHierarchy useValue="[P].[D].[H3]" displayValue=" Hierarchy 3"/>
 *				 </selectHierarchies>
 */
cognos.Prompt.Control.PickTree.prototype.f_getXMLHierachyValues = function()
{
	var v_aOptionXml = ['<selectHierarchy', ' useValue="',K_PRMT_sEMPTY,'" displayValue="',K_PRMT_sEMPTY,'" />'];
	var result = "<selectHierarchies>";

	var v_oPickList = this.m_oPickList;
	if (v_oPickList.options && v_oPickList.options.length > 0) {
		//var v_oSelOption = v_oPickList.options[v_oPickList.selectedIndex];
		var v_option = null;
		var v_oPickListOptions = v_oPickList.options;
		// skip the first two options (header and separator)
		for ( var i = 2; i < v_oPickListOptions.length; i++ )
		{
			v_option = v_oPickListOptions[i];
			v_aOptionXml[2] =  v_option.getAttribute('value');
			// for embedded IE 9 "feature"
			if  (!v_aOptionXml[2] && v_option.attributes && v_option.attributes['value']) {
				v_aOptionXml[2] = v_option.attributes['value'].value;
			}

			v_aOptionXml[4] =  v_option.getAttribute(K_PRMT_sDV);
			result += v_aOptionXml.join(K_PRMT_sEMPTY);
		}
	}
	result += "</selectHierarchies>";
	return result;
};


/**
 * Send a forward request to Report Server indicating that it is a reprompt and 
 * the chosen hierarchy node will be included as a form-field variable:
 *  - name : "_swt_"+ promptName + "_hierarchy";
 *  - value: useValue for the selected hierarchy
 *  and the list of hierarchies, so RSVP doesn't need to do another metadata request
 *  to re-fill the hierarchies list.
 *  - hierachies_name : "_swt_"+ promptName + "_hierarchies";
 *  - value : the list of hierarchies in XML format (like the intermediateXML)
 */
cognos.Prompt.Control.PickTree.prototype.f_onChangeTree = function()
{
	var v_idName = this["@parameter"];
	var isNameUsedAsId = false;
	if (!v_idName || (v_idName.trim && v_idName.trim().length < 1)) {
		v_idName = ( this["@name"] ? this["@name"] : "");
		isNameUsedAsId = true;
	}
	var v_sName = "_swt_"+ v_idName + "_hierarchy";
	var v_sValue = this.f_getPickListSelection();

	// clear current tree selection if any
	this.m_oTree.clearValues();

	if ( v_sValue )
	{
		var oCV = this.f_getCV();
		var v_sSubmitType = K_ACTION_REPROMPT;
		var v_sHierarchiesName = "_swt_"+ v_idName + "_hierarchies";
		if (oCV && typeof oCV.submitPromptValues == K_PRMT_sFUNCTION && typeof ViewerDispatcherEntry == K_PRMT_sFUNCTION){
			var oReq = new ViewerDispatcherEntry(oCV);
			oReq.addFormField("ui.action", K_ACTION_FORWARD);
			oReq.addFormField(v_sName, v_sValue);
			oReq.addFormField(v_sHierarchiesName, this.f_getXMLHierachyValues());
			if (isNameUsedAsId) {
				oReq.addFormField("_promptIdBasedNames",true);
			}
			oReq.addFormField("_promptControl", K_ACTION_REPROMPT);
			oCV.submitPromptValues(oReq);
		} else {
			SetPromptMethod(K_ACTION_FORWARD);
			if (document.forms[0]) {
				var frm = document.forms[0];
				genHiddenInputHTML( frm.name, v_sName, v_sValue );
				genHiddenInputHTML( frm.name, v_sHierarchiesName, this.f_getXMLHierachyValues());
				if (isNameUsedAsId) {
					genHiddenInputHTML( frm.name,"_promptIdBasedNames",true);
				}
			}
			SetPromptControl( K_ACTION_REPROMPT );
		}
	}

};